Table 2

Frequency and location of interscallop separation(s) (ISS) detected by handheld echocardiography

Low-risk cohort
(n=359)
High-risk cohort
(n=400)
n (%)n(%)
No/indeterminate ISS*90 (25)121 (30.2)
Isolated ISS†
 P11 (0.4)8‡ (2.9)
 P240 (14.8)37 (13.3)
 P342 (15.6)16‡ (5.8)
 P1/P26 (2.2)13 (4.7)
 P2/P3136 (50.6)142 (51)
>1 ISS†
 Double ISS37 (13.8)55 (19.8)
 Treble ISS7 (2.6)6 (2.2)
 Quadruple ISS0 (0)1 (0.3)
Total269 (100)278 (100)
  • *Calculated as a percentage of the entire cohort.

  • †Calculated as a percentage of cases with identifiable ISS of the posterior mitral valve leaflet.

  • ‡P<0.05.